Download or read book Rockfishes of the genus Sebastes written by George W. Boehlert and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Atlas of Reproductive Development in Rockfishes Genus Sebastes written by Franklin R. Shaw and published by . This book was released on 2012 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: The genus Sebastes consists of over 100 fish species, all of which are viviparous and long-lived. Previous studies have presented schemes on the reproductive biology of a single targeted species of the genus Sebastes, but all appear to possess a similar reproductive biology as evidenced by this and other studies. This atlas stages major events during spermatogenesis, oogenesis, and embryogenesis, including atresia, in six species of Sebastes (S. alutus, S. elongatus, S. helvomaculatus, S. polyspinis, S. proriger, and S. zacentrus). Our study suggests that the male reproductive cycle of Sebastes is characterized by 11 phases of testicular development, with 10 stages of sperm development and 1 stage of spermatozoa atresia. Ovarian development was divided into 12 phases, with 10 stages of oocyte development, 1 stage of embryonic development, and 1 stage of oocyte atresia. Embryonic development up to parturition was divided into 33 stages following the research of Yamada and Kusakari (1991). Reproductive development of all six species examined followed the developmental classifications listed above which may apply to all species of Sebastes regardless of the number of broods produced annually. Multiple brooders vary in that not all ova are fertilized and progress to embryos; a proportion of ova are arrested at the pre-vitellogenic stage. Reproductive stage examples shown in this atlas use S. elongatus for spermatic development, S. proriger for oocyte development, and S. alutus for embryological development, because opportunistic sampling only permitted complete analysis of each respective developmental phase for those species. The results of this study and the proposed reproductive phases complement the recommended scheme submitted by Brown-Peterson et al. (2011), who call for a standardization of terminology for describing reproductive development of fishes.

Download or read book Essential fish habitat source document Redfish Sebastes spp life history and habitat characteristics written by and published by DIANE Publishing. This book was released on with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Kelp Rockfish Sebastes Atrovirens Jordan and Gilbert 1880 and Brown Rockfish S Auriculatus Girard 1854 from Birth to Pelagic Juvenile Stage with Notes on Early Larval Development of Black and yellow Rockfish S Chrysomelas Jordan and Gilbert 1880 Reared in the Laboratory Pisces Sebastidae written by William Watson and published by . This book was released on 2004 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Additions to Knowledge of Sebastes Larvae Through Recent Rearing written by Arthur W. Kendall and published by . This book was released on 1989 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Current Fisheries Statistics written by United States. National Marine Fisheries Service and published by . This book was released on 1984 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Marine Recreational Fishery Statistics Survey written by and published by . This book was released on 1985 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Allocation of Harvest Opportunity Between Sectors of the Pacific Coast Groundfish Fishery written by and published by . This book was released on 2010 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proposed Harvest Specifications and Management Measures for the 2011 2012 Pacific Coast Groundfish Fishery and Amendment 16 5 to the Pacific Coast Groundfish Fishery Management Plan to Update Existing Rebuilding Plans and Adopt a Rebuilding Plan for Petrale Sole written by and published by . This book was released on 2011 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Essential Fish Habitat Designation and Minimization of Adverse Impacts Pacific Coast Groundfish Fishery Management Plan written by and published by . This book was released on 2005 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Federal Register written by and published by . This book was released on 1978 with total page 1122 pages. Available in PDF, EPUB and Kindle. Book excerpt: